-99% is the change from 896 to 9
Calculation steps:
[( 9 - 896 ) ÷ 896] x 100 = -99%
Formula
Percentage change = [(9 - 896) / 896] x 100
Subtract the new number by the original number
9 - 896 = -887
-887 ÷ 896 = -0.9899553571428571
-0.9899553571428571 x 100 = -99%